American Institute of Certified Planners (AICP) Practice Exam

An acre is defined as a unit of land area that is equivalent to 43,560 square feet. This measurement is widely used in the United States for real estate and land planning. Understanding the size of an acre in square feet is essential for planning and zoning, as it allows planners to make informed decisions about land use, development, and resource allocation. The number 43,560 has historical roots, stemming from older land measurement systems, and it remains the standard definition today. This knowledge is crucial for any professional in urban planning, landscape architecture, or related fields, as it directly impacts design, resource management, and land development strategies.